Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Hard-sphere fluid with tight-binding electronic interactions

John P. Hernandez
Department of Physics and Astronomy, University of North Carolina at Chapel Hill

Friday, May 2, 2003
10:30 AM @ Stirling 201

Abstract:

In fluids which become metallic as their density is increased, the electron-ion interaction induces correlations among the atomic positions, not describable with a pair potential, which are crucial for understanding a spectrum of the system properties. Motivated by experimental results on the alkali-atom fluids, we have examined the influence of such interactions, using Monte Carlo simulations, on the structural, thermodynamic, and electronic properties of a simple monovalent-atom fluid model, with atomic hard-sphere repulsions and electron hopping which plays the central role by providing the only system cohesion. The model, techniques, and results will be discussed.